let a = 1, b = 1, c = 0


let start_time = +new Date()
const d = a & b
let end_start = +new Date()
console.log(d, end_start - start_time);

start_time = +new Date()
const f = a === b
end_start = +new Date()
console.log(f, end_start, end_start - start_time);